7220388

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1999}}^1$

素因数の和:2056

約数の個数: 48

約数和(自身を含む): 19712000

約数和(自身を除く): 12491612

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 43, 84, 86, 129, 172, 258, 301, 516, 602, 903, 1204, 1806, 1999, 3612, 3998, 5997, 7996, 11994, 13993, 23988, 27986, 41979, 55972, 83958, 85957, 167916, 171914, 257871, 343828, 515742, 601699, 1031484, 1203398, 1805097, 2406796, 3610194, 7220388]

約数ペア:

[(1, 7220388), (2, 3610194), (3, 2406796), (4, 1805097), (6, 1203398), (7, 1031484), (12, 601699), (14, 515742), (21, 343828), (28, 257871), (42, 171914), (43, 167916), (84, 85957), (86, 83958), (129, 55972), (172, 41979), (258, 27986), (301, 23988), (516, 13993), (602, 11994), (903, 7996), (1204, 5997), (1806, 3998), (1999, 3612)]